201636530 has 16 divisors (see below), whose sum is σ = 363593880. Its totient is φ = 80510592.

The previous prime is 201636529. The next prime is 201636553. The reversal of 201636530 is 35636102.

It can be written as a sum of positive squares in 4 ways, for example, as 169702729 + 31933801 = 13027^2 + 5651^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201636530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12029 + ... + 23408.

Almost surely, 2^201636530 is an apocalyptic number.

201636530 is a deficient number, since it is larger than the sum of its proper divisors (161957350).

201636530 is a wasteful number, since it uses less digits than its factorization.

201636530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36013.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 201636530 is about 14199.8778163757. The cubic root of 201636530 is about 586.3942975665.

The spelling of 201636530 in words is "two hundred one million, six hundred thirty-six thousand, five hundred thirty".